摘要
仿栗是我国南方重要的乡土树种,进行仿栗扦插繁殖中插条内部营养物质及保护酶系统变化特征的研究,对于开展仿栗无性扩繁具有重要的价值。通过连续60 d的观测,在综合分析了插穗体内可溶性糖、氮含量、可溶性蛋白等营养物质含量以及保护酶系统的变化规律后发现,使用K—IBA生根激素能不同程度地改善插穗的营养状况,提高抗逆境能力,进一步提高生根效果,其中以K—IBA 3 000 mg.L-1综合效果最好。
Sloanea hemsleyana is an evergreen native tree in southern China.In order to study the effects of applying K-IBA to the cuttings on the change of nutrient content and activity of the protective enzymes in the cuttings during the cutting propagation,the contents of soluble sugar,total nitrogen,soluble protein,MDA,and the activity of SOD and POD were measured for 7 times every 10 days.The results of 60 days consecutive analysis show that K-IBA could significantly improve the content of nutrients and stimulate the activity of protective enzymes,and the treatment with K-IBA 3000mg·L^-1 had the best effect.
出处
《中南林业科技大学学报》
CAS
CSCD
北大核心
2011年第3期118-122,共5页
Journal of Central South University of Forestry & Technology
基金
国家科技支撑计划课题"能源型专用植物新品种选育技术研究"(2007BAD41B01)
关键词
仿栗
植物激素
扦插繁殖
生理活性
保护酶
Sloanea hemsleyana
auxin
cutting propagation
physiological activity
protective enzyme
